Surface-Modified Inorganic Nitride for Better Resin Dispersibility
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Solution Overview
Problem
Inorganic nitrides, such as boron nitride, used as thermally conductive materials in organic substances like resin binders, face challenges in achieving improved dispersibility, which is crucial for enhancing their thermally conductive properties.
Innovation Solution
A surface-modified inorganic nitride is developed by treating the surface of boron nitride with specific compounds like 4-biphenylcarboxylic acid or 4-biphenylmethanol, and then using a compound of Formula (I) with a mesogenic skeleton and specific functional groups to further enhance dispersibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the surface of inorganic nitride is treated with conventional organic substances, then the affinity with organic substance is improved, but the dispersibility remains insufficient
Solution Approach 1:
The patent changes the chemical parameters of the surface treatment compound by introducing a mesogenic skeleton with specific structural features (Formula I) into the surface treatment agent. This structural modification transforms the compound's interaction with both the inorganic nitride surface and the organic binder, simultaneously improving affinity and dispersibility through optimized molecular architecture rather than conventional surface treatment agents
Solution Approach 2:
The patent creates a composite surface structure where the inorganic nitride surface is coated with a hybrid compound containing both inorganic-binding groups and organic-compatible mesogenic structures. This composite surface layer enables the inorganic nitride to maintain strong affinity with the organic binder while achieving superior dispersibility, effectively combining properties of both inorganic and organic materials at the interface
2Reliability
If the surface of inorganic nitride is modified to improve dispersibility, then the thermally conductive properties can be enhanced, but the complexity of the treatment process increases
Solution Approach 1:
The patent incorporates the mesogenic skeleton structure directly into the surface treatment compound before application, pre-configuring the molecule with dual functionality for surface binding and organic compatibility. This preliminary structural design eliminates the need for multiple sequential treatment steps, reducing process complexity while achieving the desired thermal conductivity enhancement through improved dispersibility
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The surface-modified inorganic nitride exhibits improved dispersibility and thermally conductive properties, leading to enhanced performance in thermally conductive materials and devices.
Implementation Method 1
a compound of the formula (I) [0012] wherein R 1 each independently is a hydrogen atom or a substituent; n is an integer of ≥ 3; X each independently is an aromatic hydrocarbon ring group or an aromatic heterocyclic group; Y each independently is a single bond, -O-, -CO-, -CO-O-, -O-CO-, -S-, -CS-, -NR A
Data Source
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AI summary
A first object of the present invention is to provide a surface-modified inorganic nitride having excellent dispersibility. Furthermore, a second object of the present invention is to provide a composition, a thermally conductive material, and a device with a thermally conductive layer which contain the surface-modified inorganic nitride. The surface-modified inorganic nitride of the present invention includes an inorganic nitride, and a compound which is represented by General Formula (I) and is adsorbed onto a surface of the inorganic nitride. In General Formula (1), n represents an integer of 3 or greater. X represents an aromatic hydrocarbon ring group or an aromatic heterocyclic group. Y represents a single bond, -O-, -CO-, -CO-O-, -O-CO-, -S-, -CS-, -NRA-, -N=N-, or a divalent unsaturated hydrocarbon group. RA represents a hydrogen atom or an alkyl group. R1 and R2 each independently represent a substituent. Here, at least one of R1 or R2 represents a monovalent organic group containing a specific functional group selected from the group A of specific functional groups. In General Formula (1), a plurality of X's may be the same as or different from each other. Moreover, a plurality of X's may be the same as or different from each other.